Thought it was an official game when I saw the title. T_T
Not really out of nowhere, there's videos from 2015 on there too. Never heard of it before though.
LTD: PS4 - 125m, Switch - 110m, XBO - 51m
2020: PS4 - 9m, Switch - 22.5m, XBO - 2.5m, PS5 - 4.5m, XBX - 2.8m